/*
*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
*
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* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
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*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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*/
package java2d;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPanel;
import javax.swing.border.EtchedBorder;
/**
* A convenience class for demos that use Custom Controls. This class
* sets up the thread for running the custom control. A notifier thread
* is started as well, a flashing 2x2 rect is drawn in the upper right corner
* while the custom control thread continues to run.
*/
@SuppressWarnings("serial")
public abstract class CustomControls extends JPanel implements Runnable {
protected Thread thread;
protected boolean doNotifier;
private CCNotifierThread ccnt;
private String name = "foo.bar Demo";
private static final Color blue = new Color(204, 204, 255);
public CustomControls() {
setBorder(new EtchedBorder());
addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (thread == null) { start(); } else { stop(); }
}
});
}
public CustomControls(String name) {
this();
this.name = name + " Demo";
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(doNotifier ? blue : Color.gray);
g.fillRect(getSize().width-2, 0, 2, 2);
}
public void start() {
if (thread == null) {
thread = new Thread(this);
thread.setPriority(Thread.MIN_PRIORITY);
thread.setName(name + " ccthread");
thread.start();
(ccnt = new CCNotifierThread()).start();
ccnt.setName(name + " ccthread notifier");
}
}
public synchronized void stop() {
if (thread != null) {
thread.interrupt();
if (ccnt != null) {
ccnt.interrupt();
}
}
thread = null;
}
// Custom Controls override the run method
@Override
public void run() {
}
/**
* Notifier that the custom control thread is running.
*/
class CCNotifierThread extends Thread {
/**代码未完, 请加载全部代码(NowJava.com).**/